Patents by Inventor Subir Debnath
Subir Debnath has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9574055Abstract: A compatibilized silica for incorporation into natural and synthetic polymers in latex form using precipitated or fumed silica with at least two organosilicon coupling compounds in an aqueous suspension. Polymer-silica reinforced masterbatches are prepared by addition of the compatibilized silica slurry using the formed compatibilized silica.Type: GrantFiled: August 24, 2012Date of Patent: February 21, 2017Assignee: LION COPOLYMER HOLDINGS, LLCInventors: Mark Arigo, Subir Debnath
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Patent number: 9267019Abstract: A rubber composition and a tire using the rubber composition utilizing a functionalized silica dry precipitated silica with a specific surface area in the range of 100 to 300 m2/gm treated with a plurality of silanes coupling agents to form a wet polymer silica masterbatch, then blending the masterbatch with a latex rubber component that includes a styrene-butadiene copolymer rubber or a blend of the styrene-butadiene copolymer rubber and another conjugated diene base rubber using a plurality of coupling agents simultaneously.Type: GrantFiled: July 27, 2012Date of Patent: February 23, 2016Assignee: LION COPOLYMER HOLDINGS, LLCInventors: Mark Arigo, Subir Debnath, Jorge Soto
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Patent number: 8987346Abstract: A high solids cross-linked ethylene propylene diene terpolymer latex consisting of 15 weight percent to 88 weight percent ethylene propylene diene terpolymer with a molecular weight from 1300000 Mw to 5000 Mw, 10 weight percent to 70 weight percent of a water, 1 weight percent to 15 weight percent of a surfactant, and 0.3 weight percent to 1.76 weight percent of a curative.Type: GrantFiled: March 27, 2014Date of Patent: March 24, 2015Assignee: Lion Copolymer Geismar, LLCInventors: Michael J. Molnar, George A. Von Bodungen, Subir Debnath, Harold William Young, Jr., Zhiyong Zhu
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Publication number: 20150031796Abstract: A method for blending functionalized silica with styrene butadiene rubber or ethylene propylene diene monomer rubber can include silica and an organosilane chemically and covalently bound to a surface of the silica. The organosilane can be derived from an organic silane with a functional group. A silica rubber masterbatch for complexing with an emulsion styrene butadiene rubber latex, a synthetic polymer, a natural polymer, or combinations thereof can include the functionalized silica with the organosilane or a blend of organosilanes chemically and covalently bound to a surface of the silica. Each organosilane can have an average tetrameric structure having a T3/T2 ratio of 0.3 to 0.9 or greater as measured by 29Si silicon cross polarization magic angle spinning nuclear magnetic resonance.Type: ApplicationFiled: October 15, 2014Publication date: January 29, 2015Inventors: Subir Debnath, Harold William Young, JR.
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Publication number: 20140378574Abstract: A high solids cross-linked ethylene propylene diene terpolymer latex consisting of 15 weight percent to 88 weight percent ethylene propylene diene terpolymer with a molecular weight from 1300000 Mw to 5000 Mw, 10 weight percent to 70 weight percent of a water, 1 weight percent to 15 weight percent of a surfactant, and 0.3 weight percent to 1.76 weight percent of a curative.Type: ApplicationFiled: March 27, 2014Publication date: December 25, 2014Applicant: LION COPOLYMER GEISMAR, LLCInventors: Michael J. Molnar, George A. Von Bodungen, Subir Debnath, Harold William Young, JR., Zhiyong Zhu
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Publication number: 20140364534Abstract: Latex blend formulations that include a high solids cross-linked ethylene propylene diene terpolymer latex with acrylics, polyurethane, epoxy, or alkyd resin usable as a waterproofing material for roofs or usable in paints and adhesives.Type: ApplicationFiled: April 16, 2014Publication date: December 11, 2014Applicant: LION COPOLYMER GEISMAR, LLCInventors: Michael J. Molnar, George A. Von Bodungen, Subir Debnath, Harold William Young, JR., Zhiyong Zhu
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Patent number: 8901204Abstract: Latex blend formulations that include a high solids cross-linked ethylene propylene diene terpolymer latex with acrylics, polyurethane, epoxy, or alkyd resin usable as a waterproofing material for roofs or usable in paints and adhesives.Type: GrantFiled: April 16, 2014Date of Patent: December 2, 2014Assignee: Lion Copoloymer Geismar, LLCInventors: Michael J. Molnar, George A. Von Bodungen, Subir Debnath, Harold William Young, Jr., Zhiyong Zhu
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Patent number: 8859638Abstract: A low pressure, low volatile, low energy method to make an ethylene, propylene diene terpolymer latex usable in paints, adhesives, and as a coating.Type: GrantFiled: March 27, 2014Date of Patent: October 14, 2014Assignee: Lion Copolymer Geismar, LLCInventors: Michael J. Molnar, George A. Von Bodungen, Subir Debnath, Harold William Young, Jr., Zhiyong Zhu
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Patent number: 8835536Abstract: A highly loaded silica wet masterbatch utilizing a functionalized silica dry precipitated silica with a specific surface area in the range of 100 to 300 m2/gm treated with a plurality of silanes coupling agents to form a wet polymer silica masterbatch, then blending the masterbatch with a latex rubber component that includes a styrene-butadiene copolymer rubber or a blend of the styrene-butadiene copolymer rubber and another conjugated diene base rubber using a plurality of coupling agents simultaneously.Type: GrantFiled: July 27, 2012Date of Patent: September 16, 2014Assignee: Lion Copolymer Holdings, LLCInventors: Subir Debnath, Mark Arigo
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Patent number: 8741987Abstract: A polymer masterbatch in latex form having nanomaterials and a compatibilized silica for incorporation into natural and synthetic polymers in latex form using precipitated or fumed silica with at least two organosilicon coupling compounds attached to the silica in an aqueous suspension.Type: GrantFiled: August 24, 2012Date of Patent: June 3, 2014Assignee: Lion Copolymer Holdings, LLCInventors: Lawrence Douglas Harris, Mark Arigo, Subir Debnath, Jorge Soto
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Publication number: 20130203915Abstract: A compatibilized silica for incorporation into natural and synthetic polymers in latex form using precipitated or fumed silica with at least two organosilicon coupling compounds in an aqueous suspension. Polymer-silica reinforced masterbatches are prepared by addition of the compatibilized silica slurry using the formed compatibilized silica.Type: ApplicationFiled: August 24, 2012Publication date: August 8, 2013Applicant: LION COPOLYMER, LLCInventors: Mark Arigo, Subir Debnath
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Publication number: 20130203917Abstract: A polymer masterbatch in latex form having nanomaterials and a compatibilized silica for incorporation into natural and synthetic polymers in latex form using precipitated or fumed silica with at least two organosilicon coupling compounds attached to the silica in an aqueous suspension.Type: ApplicationFiled: August 24, 2012Publication date: August 8, 2013Applicant: LION COPOLYMER, LLCInventors: Lawrence Douglas Harris, Mark Arigo, Subir Debnath, Jorge Soto
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Publication number: 20130203914Abstract: A highly loaded silica wet masterbatch utilizing a functionalized silica dry precipitated silica with a specific surface area in the range of 100 to 300 m2/gm treated with a plurality of silanes coupling agents to form a wet polymer silica masterbatch, then blending the masterbatch with a latex rubber component that includes a styrene-butadiene copolymer rubber or a blend of the styrene-butadiene copolymer rubber and another conjugated diene base rubber using a plurality of coupling agents simultaneously.Type: ApplicationFiled: July 27, 2012Publication date: August 8, 2013Applicant: LION COPOLYMER, LLCInventors: Subir Debnath, Mark Arigo
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Publication number: 20120322925Abstract: A rubber composition and a tire using the rubber composition utilizing a functionalized silica dry precipitated silica with a specific surface area in the range of 100 to 300 m2/gm treated with a plurality of silanes coupling agents to form a wet polymer silica masterbatch, then blending the masterbatch with a latex rubber component that includes a styrene-butadiene copolymer rubber or a blend of the styrene-butadiene copolymer rubber and another conjugated diene base rubber using a plurality of coupling agents simultaneously.Type: ApplicationFiled: July 27, 2012Publication date: December 20, 2012Applicant: LION COPOLYMER, LLCInventors: Mark Arigo, Subir Debnath, Jorge Soto
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Publication number: 20120322924Abstract: A method for making a high silica loaded polymeric composition by forming a pretreated silica by creating an aqueous slurry with a silica and a silane, mixing a solvent with the silane and adding the mixture to the silica, or spraying silane on the silica allowing the liquids to be absorbed into the silica. The method includes coupling the silane onto the silica, adding the pretreated silica to a carrier, forming a slurry, heating the slurry, and mixing preheated polymeric rubber latex with the heated slurry to form a latex slurry, then blending a coagulant with the latex slurry while stirring and allowing coagulation of the latex slurry to form the high silica loaded polymeric rubber composite.Type: ApplicationFiled: June 15, 2012Publication date: December 20, 2012Applicant: LION COPOLYMER, LLCInventors: Mark Arigo, Jorge Soto, Subir Debnath
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Publication number: 20080246192Abstract: A polyester composition comprising a reaction product of: 65-94.5 weight percent of a polyester having a weight average molecular weight of greater than or equal to 70,000 g/mol, of the formula wherein each T is a C6-10 aromatic group derived from a dicarboxylic acid and D is a C2-4 aliphatic group derived from a dihydroxy compound; 5-30 weight percent of an impact modifier copolymer comprising units derived from a C2-20 olefin and units derived from a glycidyl(meth)acrylate; and 0.5-5 weight percent of a particulate fluoropolymer encapsulated by a copolymer having a Tg of greater 10° C. and comprising units derived from a monovinyl aromatic monomer and units derived from a C3-6 monovinylic monomer; and wherein the composition has less than 70 weight percent of a polyester derived from a dicarboxylic acid and an aliphatic diol selected from the group consisting of 1,3-propylene glycol, neopentyl glycol, 1,5-pentanediol, 1,6-hexanediol, decamethylene glycol, cyclohexanediol, and 1,4-cyclohexanedimethanol.Type: ApplicationFiled: April 6, 2007Publication date: October 9, 2008Inventors: Sung Dug Kim, Subir Debnath
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Publication number: 20080246191Abstract: A polyester composition comprising a reaction product of 50 to 95 wt. % of a polyester having a number average molecular weight of greater than or equal to 42,450 g/mol, wherein the polyester is of the formula wherein T is a divalent C6-10 aromatic group derived from a dicarboxylic acid, and D is a divalent C2-4 aliphatic group derived from a dihydroxy compound; 16 to 25 wt. % of a carboxy reactive impact modifier; and more than 0 to 5 wt. % of a fluoropolymer; wherein the composition has less than 70 wt. % of a polyester derived from a dicarboxylic acid and an aliphatic diol component selected from 1,3-propylene glycol, neopentyl glycol, 1,5-pentanediol, 1,6-hexanediol, decamethylene glycol, cyclohexanediol, and 1,4-cyclohexanedimethanol.Type: ApplicationFiled: April 6, 2007Publication date: October 9, 2008Inventors: Parminder Agarwal, Subir Debnath, Josephus Gerardus M. van Gisbergen
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Publication number: 20070213471Abstract: An article for contact with a liquid fuel, comprising a composition comprising a polyester reacted with a carboxy-reactive material, the product of said reaction having increased solvent resistance relative to the initial polyester. The article can be in the form of a container or fibers.Type: ApplicationFiled: August 18, 2006Publication date: September 13, 2007Applicant: General Electric CompanyInventors: Sung Dug Kim, Subir Debnath